Malicious PDF — malware analysis report

Static analysis result for SHA-256 caffc3212abe8d24…

MALICIOUS

PDF

74.3 KB Created: 2021-01-30 15:55:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: ee59864d6323f640c19c885de73b78ca SHA-1: 71f610a9eccb99cc7ea47cc6162729322a9e8318 SHA-256: caffc3212abe8d243a8b451ac6b64f2bce371028cf132065f8c73b3456663414
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a resource that is likely part of a phishing or malware distribution campaign, disguised as a budgeting template. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://bologen.ru/aws?utm_term=zero+based+budgeting+template+free PDF link annotation
    • https://cdn.sqhk.co/dufubimaru/KZmC1ib/brawl_stars_all_characters_drawing.pdfIn PDF document text
    • https://pamaridefudeluz.weebly.com/uploads/1/3/0/7/130776324/vopekuzibafugiz.pdfIn PDF document text
    • https://jifalutisapore.weebly.com/uploads/1/3/4/7/134772579/potofadatapu-rupipozaxaxoto-jixotizelefali-burekoliv.pdfIn PDF document text
    • https://bikezurikol.weebly.com/uploads/1/3/4/6/134612173/2258512.pdfIn PDF document text
    • https://pobezewimo.weebly.com/uploads/1/3/2/6/132681951/rukenujegimoke.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487186/normal_5fec1c6058338.pdfIn PDF document text
    • http://drilltech.info/wukawufaxegiwus4yk1u.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392463/normal_5ff70bcfd21bd.pdfIn PDF document text
    • http://love-your-lips.online/troy_island_zombie_castawaysprvbm.pdfIn PDF document text
    • https://cdn.sqhk.co/sopiloroda/ijc3LWQ/97126551307.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421970/normal_5ff2f43198430.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392195/normal_5ff9c2ebbeb6e.pdfIn PDF document text
    • https://fiwisito.weebly.com/uploads/1/3/4/7/134715438/5598426.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xunaxutuwu.rf.gd/introduction_ppt_template_free.pdfIn PDF document text
    • http://fugovolit.rf.gd/zevigi.pdfIn PDF document text
    • http://wilafavibu.rf.gd/29794677494.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE235 5460 bytes
SHA-256: b2aec08f972d4e6bc8c0061eccb74114f4eb1bebf22317ddec09c3dcda44cefe
font_01_sfnt_off0000f4ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4AD 11948 bytes
SHA-256: c196863b9c306aa86ce4c9b0c864f8dd1699141449d1091410774350677aa5ca